Buscar recursos académicos

Graphene layers are known to stack in two stable configurations, namely, ABA or ABC stacking, with drastically distinct electronic properties. Unlike the ABA stacking, little has been done to experimentally investigate t...

ABSTRACT Rechargeable aqueous manganese‐based batteries offer a low‐cost, high‐safety, and promising solution to meet the growing demand for large‐scale energy storage systems. However, since aqueous manganese‐...

The image of Our Lady of Copacabana is a gilded polychrome sculpture manufactured in maguey wood at the end of the 16th century. It is a highly devotional image in the Andean region and her sanctuary lays at the shores o...

Abstract The photocatalytic efficiency of pristine titanium dioxide nanoparticles (TiO2 NPs) remains suboptimal due to its poor visible light absorption and rapid charge carrier recombination, necessitating fine structu...

Graphite was exfoliated to graphene by tip sonic using sodium cholate as a surfactant in the presence of Millipore water as a medium. The use of water as a solvent for exfoliation purposes is very important due to its en...

Abstract In the present study, yttrium oxide (Y₂O₃) nanoparticles were successfully synthesized using different precipitating agents, namely acetic acid, oxalic acid, sodium carbonate, and urea, through a controlled ...

Biomaterials capable of controlling the delivery of drugs have the potential to treat a variety of conditions. Herein, the preparation of electrically conductive silk fibroin film-based drug delivery devices is described...

Background/Aim: The role of ions in prevention of dental caries has been demonstrated in numerous studies. The aim of this study was to investigate the amount of released ions from different restorative materials using i...

Cerium-based conversion coatings were formed on AZ91D magnesium alloy by immersion of the substrate in solutions containing Ce(NO3)3, H2O2 and ascorbic acid (HAsc). The characterisation of the films was performed by elec...

The synthesis of silver nanoparticles of varying size has been achieved using different molar concentrations of NaOH while the effect of changing the temperature has been studied. AgNO3, gelatine, glucose and NaOH are us...

Jayshree H Ahire,1 Qi Wang,2 Yongping Bao,2 Isabelle SR Storer,1,3 Stefan Bidula,1,3 Gary Rowley,3,4 Jason C Crack1 1School of Chemistry, Pharmacy and Pharmacology, University of East Anglia, Norwich, Norfolk, UK; 2Norwi...

The paper presents a simple one-step "green" approach to the synthesis of magnetite nanoparticles. The magnetite nanoparticles were synthesized using fruit extract obtained from grape peels and grape pulp. The formation ...

BackgroundOccupational health places often involve complex dust samples characterized by diverse compositions and a lack of prior supplementary information. These factors pose challengs in ascertaining crystal phase comp...

In this paper we present a rapid and simple onepot method to obtain gold nanoparticles functionalized with folic acid using a photochemistry method. The bioconjugate folic acid-gold nanoparticle was generated in one step...

Micro-capillaries with an engineered hidden surface were produced via the self-rolling of polymer thin films whose surface was photochemically modified so as to coat it with silver nanoparticles. The polymer films consis...

In this work, five substituted perovskite such as (Gd0.9Sr0.1) Mn0.8Co0.2O3, Tb0.8Sr0.2FeO3, Gd0.6Sr0.4RuO3, SrCe0.95Y0.05O3, and Mn0.6Co0.4SnO3 were synthesized by tartrate and hydroxide precursor method. The resulting ...

Sulfide superionic conductors (e.g., argyrodite Li6PS5Cl, LPSCl) are extremely promising for all solid‐state batteries, but poor atmospheric stability and high interfacial reactivity limit widespread adoption. Coating ...

A precise method for phase and amplitude detection in both the time and frequency domains of terahertz spectroscopy based on the weak-value amplification technique is proposed and demonstrated. Within the weak-value ampl...

Extracellular vesicles (EVs) are complex biological nanoparticles endogenously secreted by all eukaryotic cells. EVs carry a specific molecular cargo of proteins, lipids, and nucleic acids derived from cells of origin an...

Catalytic methane decomposition (CMD) offers a direct pathway to CO2-free hydrogen by converting CH4 into H2 and solid carbon. However, its application is constrained by the need for efficient heat delivery to the cataly...

Se determina cuantitativamente por espectroscopía infrarroja el contenido de mentol y acetato de mentilo en aceites esenciales de Mentha piperita y el de cineol en los de Eucalyptus globulus, efectuándose un estudio es...

Tesis Energía y Ambiente (maestría) - Instituto Tecnológico de Buenos Aires, Buenos Aires - Karlsruher Institut für Technologie, Karlsruhe, 2024 "Fibre reinforced polymers (FRP) used in outdoor applications are expos...